The trees from the unity page look awesome. Sadly, we are not allowed to use shaders.

I am looking for a basic tree in the same kind of light bulb shape. My preference to use a premade model is mainly due to time. At the moment, I am just looking for some doodads to make the scene less bare.

Doodads? Totally. Can you share a screenshot of what it's like now? Maybe you could get away with stylized graphics (read low poly) so you can have a bunch of trees combined into one mesh and easily get good performance.

If you take the Blender route, make sure to use the poly reduction script to triangulate the meshes and get them down to 1000-2000 triangles each, I recommend.

I could probably make a mediocore tree for you in a half hour for fun if you can share more what this is about. If you don't already know Blender it's quite a lot of overhead to use the script and finish the process.

Thanks for your help. Here is the screen cap, there is a lot of extra lines, spheres and other stuff for debugging the collision detection and checkpoints.

Basically it is just two textured planes morphed in Blender, one for the surface of the track and the other for the hills that provide boundaries. I think it needs some trees on some of the ridges to make it look a bit less crap. I want to add in a building ( I have the model) but don't know how it will effect performance, given I am not really doing anything to help render quickly yet.